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PCM1718 Datasheet(PDF) 8 Page - Burr-Brown (TI) |
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PCM1718 Datasheet(HTML) 8 Page - Burr-Brown (TI) |
8 / 11 page ® 8 PCM1718E 1024 system (= XTI) clocks Reset Reset Removal 2.6V 2.2V 1.8V V CC/VDD Internal Reset XTI Clock FIGURE 6. Internal Power-On Reset Timing. FIGURE 7. RSTB-Pin Reset Timing. Reset PCM1718 has both internal power on reset circuit and the RSTB-pin (pin 15) which accepts external forced reset by RSTB = LOW. For internal power on reset, initialize (reset) is done automatically at power on VDD >2.2V (typ). During internal reset = LOW, the output of the DAC is invalid and the analog outputs are forced to VCC/2. Figure 6 illustrates the timing of internal power on reset. For the RSTB-pin, PSTB-pin accepts external forced reset by RSTB = L. During RSTB = L, the output of the DAC is invalid and the analog outputs are forced to VCC/2 after internal initialize (1024 system clocks count after RSTB = H.) Figure 7 illustrates the timing of RSTB-pin reset. FIGURE 8. Typical Connection Diagram of PCM1718. 1 20 4 5 6 14 18 17 16 15 XTI XTO LRCIN DIN BCKIN FORMAT MUTE DM1 DM0 RSTB CLKO V OUTR D/C_R D/C_L V OUTL ZERO 19 9 8 13 12 7 Format Control Reset PCM Audio Data Processor To External Mute Circuit 10µF V DD 4.7k Ω + FOUT = Inverted XTI (1 pin) to Other System +5V or +3 Analog Power Supply Post Low Pass Filter Post Low Pass Filter 10µF + 0.1µF ~ 10µF Bypass Capacitor 23 DGND V DD 10 11 AGND V CC 0.1µF ~ 10µF Bypass Capacitor 10pF ~ 22pF 10pF ~ 22pF (optional) (optional) 1024 system (XTI) clocks Reset Reset Removal XTI Clock Internal Reset RSTB-pin 50% of V DD t RST (1) NOTE: (1) t RST = 20ns min |
Similar Part No. - PCM1718 |
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Similar Description - PCM1718 |
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